16
Failure
Symptoms
Possible causes
Troubleshooting
-
Mechanical obstruction in fresh air
intake or supply air outlets
- Look for mechanical obstructions of fresh air
inlet ports
- Look for mechanical obstructions of supply air
outlets
- Remove obstructions, if any
- Not found
-
Disconnect from power supply and
contact
a service technician
Appliance does not
heat at all or heats
insufficiently
-
Cool air is supplied
continuously
- Air in hot water heater
- Check heating water temperature
- Bleed air
-
Heating water temperature in the hot
water heater too low
- Check heating water temperature
- Heating water flow rate too low
-
Check the condition of the sludge filter on the
heating water inlet; clean the filter
- Maximum heater capacity too low
- No failure (incorrect design capacity - too low)
- Not found
-
Disconnect from power supply and
contact
a service technician
Appliance does not
cool at all or cools
insufficiently
-
Warm air is supplied
continuously
-
Air in water chiller
(only in CHW version)
- Air bleed the water chiller
-
Cooling water temperature too low
(only
in CHW version)
- Check cooling water temperature
-
Cooling water flow rate too low
(only in
CHW version)
-
Check the condition of the sludge filter on the
cooling water inlet; clean the filter
-
Condensation unit is not running
(only
in CHF version)
- Switch on the condensation unit
- Maximum chiller capacity too low
- No failure (incorrect design capacity - too low)
- Not found
-
Disconnect from power supply and
contact
a service technician
Water dripping from
appliance
-
Drops of water form
between the door and
frame of the appliance
during operation
-
Condensate drain siphon trap is
insufficiently filled with water
-
Disconnect from power supply and
fill the
condensate drain siphon trap with water
- Condensate drain is blocked
-
Disconnect from power supply and
clean
the condensate drain including the siphon
trap
and pipes
- Damaged door seal
(the symptoms might include a whistling
sound caused by air flowing through the
gap)
-
Disconnect from power supply and
check
the condition of the door seal
- If serious damage is discovered, contact a
service technician
-
Water drops from at the
condensate drain
connection point
-
Condensate drain seal or pipes
damaged
-
Disconnect from power supply and
contact
a service technician
- Not found
-
Disconnect from power supply and
contact
a service technician
ATTENTION: If the unit is disconnected from the electricity supply, follow the instructions given in chapter 3.2 Operational safety.
●
For further description of possible problems and troubleshooting contact your supplier of the control and measurement system.
1
1
.
R
e
p
a
i
r
s
, s
p
a
r
e p
a
r
t
s
All warranty and post-warranty repairs are performed by the supplier or an authorized service company. Service technician have an
updated list of spare parts; you can also contact the manufacturer/supplier.
1 2 . W a r r a n t y
The product is covered by warranty according to general delivery terms and conditions and the warranty conditions of the supplier,
which are a part of the accompanying documentation.
The supplier is not liable for damage caused by unprofessional installation and operation that is not in compliance with the operation
and maintenance manual and general practices applied during installation and operation of HVAC equipment and control systems.
80000791
Issue 1 02/18
